package com.lyh.mall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.lyh.common.constant.ProductConstant;
import com.lyh.common.to.SkuHasStockVo;
import com.lyh.common.to.SkuReductionTo;
import com.lyh.common.to.SpuBoundTo;
import com.lyh.common.to.es.SkuEsModel;
import com.lyh.common.utils.R;
import com.lyh.mall.product.dao.SpuInfoDao;
import com.lyh.mall.product.entity.*;
import com.lyh.mall.product.feign.CouponFeignService;
import com.lyh.mall.product.feign.SearchFeignService;
import com.lyh.mall.product.feign.WareFeignService;
import com.lyh.mall.product.service.*;
import com.lyh.mall.product.vo.*;
import io.swagger.annotations.ApiModel;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lyh.common.utils.PageUtils;
import com.lyh.common.utils.Query;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;
    @Autowired
    private SpuImagesService imagesService;
    @Autowired
    private AttrService attrService;
    @Autowired
    private ProductAttrValueService productAttrValueService;
    @Autowired
    private SkuInfoService skuInfoService;
    @Autowired
    private SkuImagesService skuImagesService;
    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    private BrandService brandService;
    @Autowired
    private CategoryService categoryService;

    @Autowired
    private CouponFeignService couponFeignService;
    @Autowired
    private WareFeignService wareFeignService;
    @Autowired
    private SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * TODO 目前只处理保存成功事务，失败事务还未处理
     * 新增商品
     * @param vo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1、保存spu基本信息：pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2、保存spu的描述图片：pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(spuInfoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3、保存spu的图片集：pms_spu_images
        List<String> images = vo.getImages();
        imagesService.saveImages(spuInfoEntity.getId(),images);

        //4、保存spu的规格参数：pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(attrEntity.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        //productAttrValueService.saveBatch(collect);
        productAttrValueService.saveProductAttr(collect);

        //5、保存spu的积分信息：mall_sms--->sms_spu_bounds (需调用远程模块)
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0){
            log.error("远程保存spu积分信息失败");
        }


        //5、保存当前spu对应的所有sku信息：pms_sku_info

        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() >0){
            skus.forEach(item->{
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg()==1){
                        defaultImg = image.getImgUrl();
                    }
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //5、1）、sku的基本信息保存:pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntityList = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    return skuImagesEntity;
                }).filter(entity->{
                    //没有图片路径的，无需保存,  返回true需保存，否则不保存剔除掉
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //5、2）、sku的图片信息：pms_sku_images
                //TODO 没有图片路径的，无需保存 ——  已解决
                skuImagesService.saveBatch(imagesEntityList);

                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> valueEntityList = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);

                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                //5、3）、sku的销售属性：pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(valueEntityList);

                //5、4）、sku的优惠、满减等信息：mall_sms--->sms_sku_ladder、sms_sku_full_reduction、sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if(skuReductionTo.getFullCount()>0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0"))==1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }


    }

    /**
     * 保存spu基本信息：pms_spu_info
     * @param spuInfoEntity
     */
    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);

    }

    /**
     * spu检索-列表
     * @param params
     * @return
     */
    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }

        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    /**
     * 商品上架
     * @param spuId
     */
    @Override
    public void up(Long spuId) {
        //1. 查出当前spuid对应的所用sku信息，品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4、查询当前sku的所有可以被用来检索的规格属性，
        List<ProductAttrValueEntity> attrValueEntities = productAttrValueService.baseAttrlistforspu(spuId);
        List<Long> attrIds = attrValueEntities.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        List<Long> searchAttrIds = attrService.selectSearchAttrids(attrIds);
        Set<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrsList = attrValueEntities.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs);
            return attrs;
        }).collect(Collectors.toList());

        //TODO 1、发送远程调用，库存系统查询是否有用库存
        Map<Long, Boolean> stockMap = null;
        try {
            R r = wareFeignService.getSkuHasStock(skuIdList);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };
            stockMap = r.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务异常：",e);
        }

        //2. 封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //需要组装的数据
            SkuEsModel skuEsModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,skuEsModel);
            //未对拷的数据：skuPrice,skuImg,hasStock,hotScore,brandName,catalogName,attrs(attrId,attrName,attrValue)
            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setSkuImg(sku.getSkuDefaultImg());

            //设置库存信息
            if (finalStockMap == null){
                skuEsModel.setHasStock(true);
            }else {
                skuEsModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分，0
            skuEsModel.setHotScore(0L);

            //TODO 3、查询品牌和分类信息
            BrandEntity brandEntity = brandService.getById(sku.getBrandId());
            skuEsModel.setBrandName(brandEntity.getName());
            skuEsModel.setBrandImg(brandEntity.getLogo());
            CategoryEntity categoryEntity = categoryService.getById(sku.getCatalogId());
            skuEsModel.setCatalogName(categoryEntity.getName());

            //设置检索属性
            skuEsModel.setAttrs(attrsList);

            return skuEsModel;
        }).collect(Collectors.toList());

        //TODO 5、将数据发送给ES进行保存：mall-search
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0){
            //远程调用成功
            //TODO 6、修改当前spu状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            //TODO 7、重复调用？接口幂等性；重试机制
        }

    }


}